Photos: Mercenary group's advance in Russia
Mercenaries with Yevgeny Prigozhin's Wagner Group claimed to have taken control of a southern Russian military hub "without firing a shot" Saturday. Russian President Vladimir Putin addressed his nation Saturday morning, promising severe consequences for the "armed uprising." Prigozhin, a formerly loyal warlord, is now threatening to march on Moscow, posing one of the gravest threats to Putin’s nearly 25-year rule.